A method and a spectrometer device for determining at least one calibrated optical property of at least one object by using a spectrometer device are disclosed. The spectrometer device comprises: - at least one light source configured for generating illumination light; - at least one detector configured for detecting detection light; - at least one sample interface configured for allowing illumination of the object with the illumination light and configured for allowing the detection light from the object to propagate to the detector; - at least one first optical path, wherein the first optical path is configured for allowing the illumination light generated by the light source to propagate to the detector by passing the sample interface at least once; - at least one second optical path, wherein the second optical path is configured for allowing the illumination light generated by the light source to propagate to the detector without passing the sample interface, wherein the second optical path receives stray light from the first optical path; - at least one evaluation unit configured for evaluating detector signals generated by the detector. The method comprises: i. providing at least one item of reference target calibration information and at least one item of stray light correction information, wherein the item of reference target calibration information comprises a relation between a detector signal in the first optical path and a detector signal in the second optical path having at least one reference target of known reflectivity applied to the sample interface, and wherein the item of stray light correction information comprises at least one relation between a signal in the second optical path and a reflectivity of a sample applied to the sample interface; ii. illuminating the first optical path and the second optical path with the illumination light generated by the light source; iii. determining, by using the detector, at least one first detector signal from the first optical path having the at least one object applied to the sample interface; iv. determining, by using the detector, at least one second detector signal S2 from the second optical path; and v. evaluating the first detector signal and the second detector signal S2 using the item of reference target calibration information to obtain at least one first optical property estimate of the object; and vi. determining the at least one calibrated optical property of the object by using the item of reference target calibration information, the item of stray light correction information and the first reflectivity estimate of the object, wherein the calibrated optical property is corrected for stray light in the second optical path.
The disclosure is in the field of material authentication systems. The disclosure relates to a material authentication system for authenticating an object comprising: a. a camera configured to capture image data of the object under illumination, b. a processor configured to determine region data from the image data, wherein region data is indicative for the probability that the object exposes an expected material in a region of the image, to determine if the object is of the expected material using the image data and the region data and to authenticate the object based on the material determination.
The disclosure is in the field of material authentication systems. The disclosure relates to a material authentication system comprising: a. an input configured to receive image data comprising a pattern image of an object under patterned illumination, b. a processor configured to generate a feature vector from the image data, wherein the feature vector represents one or more than one material property of the object, comparing the feature vector with a reference obtained from an enrollment process and authenticating the object using the comparison result.
The disclosure is in the field of material authentication systems. The disclosure relates to a material authentication system for authenticating an object comprising: a. a camera configured to capture image data of the object under illumination, b. a processor configured to determine if the object is of an expected material using the image data as input to a material model and authenticate the object based on the material determination, wherein the material model comprises an encoder which uses the image data as input and outputs a feature vector representing features in the image data and a material classifier which uses a feature vector as input and outputs a predicted class label, wherein the material model is trained with training data comprising image data captured from objects of the expected material, labelled with the expected material, image data captured from objects of a material other than the expected material, labelled with other material, and random image data labelled with other material, wherein the random image data comprises feature vectors comprising random values for training the material classifier.
The invention is in the field of spectroscopic devices. The invention relates to a spectroscopic device for determining a concentration of a body substance of a person comprising: a) a spectroscopy module configured to acquire spectroscopic data of the person, b) a heat source to cause the skin of the person to sweat, c) a processor configured to determine whether a trigger condition is fulfilled comprising determining a water concentration, to trigger a measurement of the spectroscopy module to acquire spectroscopic data of the sweat when a trigger condition is fulfilled, and to determine the concentration of the body substance of the person using the spectroscopic data, and d) an output configured to output the concentration of the body substance of the person.
The disclosure is in the field of spectroscopic devices. The disclosure relates to a spectroscopic device for determining a concentration of a body substance of a person comprising: a. a spectroscopy module for acquiring spectroscopic data measured at two body locations of the person, wherein the spectroscopic data comprises a first spectrum of a first body location and a second spectrum of a second body location, b. a temperature sensor for acquiring temperature data measured at the two body locations of the person, wherein the temperature data comprises a first temperature from the first body location and a second temperature of the second body location, c. a processor for determining the concentration of the body substance of the person using the first spectrum and the second spectrum of the spectroscopic data and the first temperature and the second temperature of the temperature data, and d. an output for outputting the concentration of the body substance of the person.
G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
A61B 5/1455 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value using optical sensors, e.g. spectral photometrical oximeters
G01N 21/359 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
G16C 20/70 - Machine learning, data mining or chemometrics
The disclosure is in the field of spectroscopic devices. The disclosure relates to a spectroscopic device for determining a concentration of a body substance of a person comprising: a) a spectroscopy module configured to acquire spectroscopic data measured of the person, b) a pressure sensor configured to acquire pressure data comprising the pressure exerted by the spectroscopy module against the person, c) a processor configured to trigger a measurement of the spectroscopy module using the pressure data, to compare spectroscopic data to previous spectroscopic data, to retrigger the spectroscopy module to acquire spectroscopic data from the person using the pressure data if the difference between previous spectroscopic data and spectroscopic data exceeds a preset threshold or no previous spectroscopic data exist, and for determining the concentration of the body substance of the person using the spectroscopic data, and d) an output configured to output the concentration of the body substance of the person.
A61B 5/145 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value
A61B 5/1455 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value using optical sensors, e.g. spectral photometrical oximeters
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
B60R 25/25 - Means to switch the anti-theft system on or off using biometry
The present invention is in the field of surface property determination. It relates to a method for determining a surface property of an object comprising: a) illuminating a surface of the object with coherent light, b) recording image data of the surface under illumination with an event camera, c) determining a surface property using the image data, and d) outputting the surface property.
The disclosure is in the field of seat belt monitoring system for a vehicle. It relates to seat belt monitoring system for a vehicle comprising: a) a projector configured to illuminate a person with patterned light, b) a camera configured to capture a pattern image of the person under pattern illumination, and c) a processor configured to receive an image from the camera and to determine the position of the seat belt in the image by determining the material of the seat belt, and d) an output configured to output the position of the seat belt.
G06V 20/59 - Context or environment of the image inside of a vehicle, e.g. relating to seat occupancy, driver state or inner lighting conditions
G06V 10/145 - Illumination specially adapted for pattern recognition, e.g. using gratings
G06V 10/80 - Fusion, i.e. combining data from various sources at the sensor level, preprocessing level, feature extraction level or classification level
B60R 22/48 - Control systems, alarms, or interlock systems, for the correct application of the belt or harness
B60R 21/015 - Electrical circuits for triggering safety arrangements in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, e.g. for disabling triggering
10.
SPECTROSCOPY CALIBRATION BASED ON LED SIGNAL RELATIONSHIP
The invention relates to a sensing device (110) for determining at least one optical property of at least one sample (112), the sensing device (110) comprising: - at least one first optical detector (114) configured for generating at least one first measurement detector signal in response to an illumination of the first detector (114) by incident light within a first spectral range (128) travelling along a first optical path (130) starting at at least one light source (118), illuminating the at least one sample (112) and propagating from the sample (112) to the first optical detector (114), and further configured for generating at least one first calibration detector signal in response to an illumination of the first detector (114) by incident light within a second spectral range (132) travelling along a second optical path (134) starting at the at least one light source (118) and illuminating the first optical detector (114) without passing a sample interface; - at least one second optical detector (116) configured for generating at least one second measurement detector signal in response to an illumination of the second optical detector (116) by incident light within the second spectral range (132) travelling along a third optical path (136) starting at the at least one light source (118), illuminating the at least one sample (112) and propagating from the sample (112) to the second optical detector (116), and further configured for generating at least one second calibration detector signal in response to an illumination of the second detector (116) by incident light in the first spectral range (128) travelling along a fourth optical path (138) starting at the at least one light source (118) and illuminating the second optical detector (116) without passing the sample interface; - the at least one light source (118); - at least one further optical element (120) comprising one or more of a second light source (122) and a filter element (124) having at least two optical filters (126); - at least one electronics unit (140) comprising at least one calibration unit (142) configured for performing a calibration of at least one of the at least two detectors (114,116) based on at least one of the first calibration detector signal and the second calibration detector signal, and further comprising at least one measurement unit (144) configured for determining the at least one optical property of the sample (112) from at least one calibrated detector signal. Further, a method of determining at least one optical property of at least one sample (112), a computer program and a computer-readable storage medium are disclosed.
G01N 21/27 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
G01N 21/35 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
The invention is in the field of processing of spectroscopic data. The invention relates to portable device comprising: a. an interface to a spectrometer to trigger the spectrometer to measure an object and to receive spectroscopic data from the spectrometer, b. a memory to provide object data or environmental data, wherein object data is data associated with a characteristic of the object and environmental data is data associated with a characteristic of the surrounding of the object, c. a communication interface to a server for sending the spectroscopic data and object data or environmental data to a server and receiving chemometric data from the server, wherein the server is configured to determine chemometric data from the spectroscopic data by executing a chemometric model.
G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
The present invention is in the field of driver monitoring for a vehicle. It relates to a driver monitoring system for a vehicle comprising: a) a projector configured to illuminate a driver of the vehicle with coherent light, b) a camera configured to record an image of the driver under illumination, c) a processor configured to determine a condition measure of the driver from the image and to generate a control signal for controlling a pre-save system, an emergency call system, or a vehicle automation system of the vehicle using the condition measure, and d) an output configured to output the control signal.
The invention is in the field of secure processing of spectroscopic data. The disclosure provides spectroscopy module suitable for integration into a portable computing device comprising: a) a photosensitive detector to acquire spectroscopic data from an object, b) a memory configured to store a chemometric model which generates chemometric data from the spectroscopic data, and c) a spectroscopy processor configured to execute the chemometric model, wherein the spectroscopy processor is configured to execute only code stored in the memory of the spectroscopy module.
G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
A method for continuously determining items of temperature information for at least one illumination unit (114) is disclosed. The illumination unit (114) comprises at least one light source (116) configured for generating illumination light (118), wherein the illumination unit (114) further comprises at least one driving unit (120) configured for electrically driving the light source (116). The method comprises: a) driving the light source (116) with at least one modulation driving scheme, the modulation driving scheme comprising a plurality of alternating on-phases and off-phases, wherein, in the on-phases, the driving unit (120) provides electrical power to the light source (116), wherein, in the off-phases, no electrical power is provided to the light source (116); b) determining at least one item of temperature information in at least two subsequent on-phases (144) using at least one item of information on at least one electrically measurable quantity applied to the light source (116); and c) determining at least one item of temperature information in an off-phase (146) using at least one item of temperature information from a preceding on-phase (148) and at least one item of temperature information from a subsequent on-phase (150).
G01K 7/01 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using semiconducting elements having PN junctions
16.
MONITORING OF SKIN CHARACTERISTICS BASED ON SURFACE ROUGHNESS MEASURE(S)
A method for monitoring one or more skin characteristic(s) based on one or more surface roughness measure(s) associated with at least a part of one or more object(s), the method comprising: - providing by one or more device(s) including one or more camera(s), one or more speckle image(s) associated with at least a part of one or more object(s), wherein the at least part of the one or more object(s) is being illuminated by one or more illumination source(s); - determining one or more surface roughness measure(s) based on the one or more speckle image(s); - determining the one or more skin characteristic(s) associated with a skin to be analyzed of the one or more object(s) based on the one or more surface roughness measure(s) derived based on the one or more speckle image(s); - providing the one or more skin characteristic(s) associated with the at least a part of one or more object(s).
A method for monitoring and/or controlling one or more optical sensor system(s) associated with one or more vehicle(s), wherein the method comprising: - receiving one or more image(s) associated with one or more interior(s) of one or more vehicle(s), wherein the one or more interior(s) include one or more interior part(s); - detecting at least part of the one or more interior part(s) of the vehicle; - determining one or more calibration signal(s) being indicative of a calibration of the one or more optical sensor system(s) or one or more component(s) thereof based on the one or more detected at least part of the one or more interior part(s) of the vehicle and based on the one or more image(s) associated with the one or more interior part(s) of the vehicle by using one or more calibration model(s); - providing the one or more calibration signal(s) for monitoring and/or controlling the one or more optical sensor system(s) associated with the one or more vehicle(s) or one or more component(s) thereof.
G06V 10/145 - Illumination specially adapted for pattern recognition, e.g. using gratings
G06V 10/25 - Determination of region of interest [ROI] or a volume of interest [VOI]
G06V 10/26 - Segmentation of patterns in the image fieldCutting or merging of image elements to establish the pattern region, e.g. clustering-based techniquesDetection of occlusion
G06V 20/52 - Surveillance or monitoring of activities, e.g. for recognising suspicious objects
G06V 20/59 - Context or environment of the image inside of a vehicle, e.g. relating to seat occupancy, driver state or inner lighting conditions
18.
METHODS FOR CLOUD SERVICES AND USER TERMINALS, COMPUTING CLOUD AND USER TERMINAL
Provided is a method for a cloud service for providing a chemometric model for extracting information from spectroscopy data. The method includes receiving a request for download of the chemometric model. Additionally, the method includes requesting validation of the chemometric model from a validator. The method further includes outputting the chemometric model together with validity data indicating that the validator validated the chemometric model.
The invention is in the field of spectroscopic devices for vehicles. The invention relates to spectroscopic device for integration into a vehicle and for determining a concentration of a body substance of a driver of the vehicle comprising: a) a spectroscopy module for acquiring spectroscopic data of the driver, b) an input to receive driver data associated with a characteristic of the driver or environmental data associated with a characteristic of the surrounding of the driver, c) a processor for determining the concentration of the body substance of the driver using the spectroscopic data and one or both of the driver data and the environmental data, and d) an output for outputting the concentration of the body substance of the driver.
G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A61B 5/18 - Devices for psychotechnicsTesting reaction times for vehicle drivers
B60K 28/06 - Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver responsive to incapacity of driver
A61B 5/1455 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value using optical sensors, e.g. spectral photometrical oximeters
B60K 28/02 - Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver
G01N 33/483 - Physical analysis of biological material
A61B 5/08 - Measuring devices for evaluating the respiratory organs
A61B 5/145 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value
B60W 40/08 - Estimation or calculation of driving parameters for road vehicle drive control systems not related to the control of a particular sub-unit related to drivers or passengers
20.
METHOD FOR FORMING AN OPTICAL FILTER DEVICE, OPTICAL DETECTOR AND OPTICAL SPECTROMETER
Provided is a method for forming an optical filter device. The method includes joining a stencil to a carrier. The stencil includes at least one recess. Additionally, the method includes arranging a respective optical filter in the at least one recess on the carrier. The method further includes filling a respective gap between the respective optical filter and a boundary of the respective recess with an adhesive. The adhesive is configured to prevent the passage of light. In addition, the method includes curing the adhesive and removing the carrier after curing the adhesive.
H10F 39/00 - Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group , e.g. radiation detectors comprising photodiode arrays
21.
LED WAVELENGTH TUNING VIA DRIVE CURRENT FOR SPECTROSCOPY
The present invention relates to a light emitting system (138) for emitting illumination light (154), the light emitting system (138) comprising: (1) at least one light emitting element (134) for emitting the illumination light (154), wherein the light emitting element (134) is selected from at least one of: at least one light emitting diode; at least one laser; (2) at least one driving unit (136) configured for driving the at least one light emitting element (134), wherein the driving unit (136) is further configured for selecting a driving current for driving the light emitting element (134) in order to set a central peak wavelength of the illumination light (154).
The invention is in the field of bioimpedance devices. The invention relates to a bioimpedance device for determining a concentration of a body substance of a person comprising: a) an impedance sensor for acquiring impedance data measured from the person, b) a spectroscopy module for acquiring spectroscopic data measured from the person, c) a processor for determining the concentration of the body substance of the person using the impedance data and the spectroscopic data, and d) an output for outputting the concentration of the body substance of the person.
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
23.
APPARATUS AND METHOD FOR PROCESSING MEASUREMENT DATA OF A SPECTROMETER, MOBILE DEVICE, SERVER AND METHOD FOR ENABLING PLAUSIBILITY DETERMINATION FOR MEASUREMENT DATA OF A SPECTROMETER AT RUN-TIME
Provided is an apparatus for processing measurement data of a spectrometer. The apparatus includes processing circuitry configured to receive the measurement data and determine whether the measurement data are plausible. If it is determined that the measurement data are plausible, the processing circuitry is further configured to forward the measurement data to a process for evaluation of the measurement data.
The invention is in the field of spectroscopic devices. The invention relates to computer-implemented method for determining chemometric data of an object comprising: a) receiving spectroscopic data associated with a spectroscopic measurement on the object, object data associated with a characteristic of the object and environmental data associated with a characteristic of the surrounding of the object, b) determining chemometric data of the object using the spectroscopic data, the object data and the environmental data, c) outputting the chemometric data of the object.
G01N 21/359 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
G01N 21/3504 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
G01N 21/3563 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solidsPreparation of samples therefor
G01N 21/3577 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing liquids, e.g. polluted water
The present invention relates to a method for operating a spectrometer device (126) for obtaining at least one item of spectral information on at least one object (128), wherein the method comprises the following step: 5. obtaining the item of spectral information on the object (128) by evaluating the item of object measurement information and the item of open port measurement information, wherein at least one of: the item of object measurement correction information and the item of open port measurement correction information are further evaluated when obtaining the item of spectral information in order to compensate for at least one deviating measurement condition during the generation of the item of object measurement information and the item of open port measurement information.
G01N 21/27 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
The invention is in the field of secure processing of spectroscopic data. The invention relates to method for processing spectroscopic data on a mobile computing device comprising: a. receiving spectroscopic data from a spectrometer module of the mobile computing device, b. generating chemometric data by executing a chemometric model using the spectroscopic data as input, wherein the chemometric model is executed in a secure environment on the mobile computing device and c. outputting the chemometric data.
G06F 21/71 - Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information
G01N 21/01 - Arrangements or apparatus for facilitating the optical investigation
G06F 21/78 - Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
G16C 20/70 - Machine learning, data mining or chemometrics
G06F 21/62 - Protecting access to data via a platform, e.g. using keys or access control rules
A method and a device method for authenticating a user of a device (110), the method comprising at least the following steps: i. receiving at least one request to access at least one resource, ii. in response to receiving the request to access the resource, triggering to illuminate at least one object by light emitted from at least one illumination source (116), and iii. triggering to generate at least one image of the object while the object is being illuminated by the light, iv. determining if spectral radiance associated with the image of the object is within at least one predefined range at least within tolerances, wherein, if the spectral radiance deviates from the predefined range, spectral radiance is manipulated in at least a part of the image associated with the deviation, v. triggering to determine if the object associated with the image corresponds to a user and/or a living organism, wherein, in case the spectral radiance deviates from the predefined range, the manipulated image is used, or, in case the spectral radiance is within the predefined range, the generated image is used, vi. allowing to access the resource based on determining that the object corresponds to a user and/or a living organism.
A method for calibrating a spectrometer device (110) is disclosed. The spectrometer device (110) comprises at least one detector element (112) configured for generating at least one detector signal in response to an illumination of the detector element (112) by incident light. The spectrometer device (110) further comprises at least one light source (118) configured for emitting illumination light (120) in at least one optical spectral range. The spectrometer device (110) further comprises at least one sample interface (126) configured for allowing the illumination light (120) from the light source (118) to illuminate at least one object (128) and configured for allowing detection light (130) from the object (128) to propagate to the detector element (112). The spectrometer device (110) further comprises at least one temperature sensor (134) configured for determining at least one temperature of the detector element (112). The method comprises: i. providing at least one predetermined calibration model (146), wherein the predetermined calibration model (146) comprises a plurality of items of calibration information for at least one temperature range; ii. illuminating the detector element (112) via the sample interface (126) having no object (128) applied to the sample interface (126) to obtain at least one open port detector signal (156); iii. determining at least one temperature (154) of the detector element (112); and iv. determining at least one temperature-corrected calibration model (148) using the predetermined calibration model (146) and taking into account the open port detector signal (156) and the temperature (154) of the detector element (112).
A method for determining if an object corresponds to a living organism comprising i) (132) illuminating the object with a pattern of light beams generated by at least one transmitter (116) of a time-of-flight system (114), wherein the transmitter (116) comprises at least one array of light emitters (118); ii) (134) generating at least one pattern image (122) of the object while the object is being illuminated by the pattern of light beams by using at least one detector (120) of the time-of-flight system (114); iii) (136) extracting liveness data from the pattern image (122) by using beam profile analysis and determining if the object corresponds to a living organism based on the liveness data.
122, wherein the driving unit (126) comprises at least one power supply (130) configured for supplying a first current to the first channel (114) and for supplying a second current to the second channel (120), wherein the driving unit (126) comprises at least one switching circuitry (132) configured for switching between supply from the power supply (130) to the first channel (114) and supply from the power supply (130) to the second channel (120).
An imaging system (111) is proposed, comprising - at least one pattern illumination source (112) configured for emitting at least one light pattern comprising a plurality of light beams having a wavelength in a short wavelength infrared spectral region, wherein the wavelength of the light is from 1000 nm to 1200 nm or from 1300 nm to 1500 nm; and - at least one image sensor (118) configured for generating at least one pattern image while the pattern illumination source (112) is emitting the light pattern, wherein the image sensor (118) is at least partially sensitive towards electromagnetic radiation in the short wavelength infrared spectral region.
The present invention refers to a method for obtaining at least one item of nail information on at least one nail (118) of a living being (119) by at least one spectroscopic measurement, the method comprising: i. arranging a relative position between at least one nail (118) of the living being (119) and the at least one spectrometer device (136) in a manner that a measurement spot of the spectrometer device (136) covers at least a portion of a free edge (160) of the at least one nail (118); ii. acquiring at least one item of spectral information on at least the portion of the free edge (160) of the at least one nail (118); iii. obtaining the at least one item of nail information on the at least one nail (118) by evaluating the item of spectral information on at least the portion of the free edge (160) of the at least one nail (118) by using an evaluation unit.
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A61B 5/145 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value
A61B 5/1455 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value using optical sensors, e.g. spectral photometrical oximeters
The present invention relates to a method for obtaining at least one item of nail information on at least one nail (130) of a living being by at least one spectroscopic measurement, the method comprising: i. acquiring spectral information by using at least one spectrometer device (124) at one or more different measurement position; ii. acquiring at least one item of reference information on at least one reference position by using at least one reference position measurement unit (136); and iii. evaluating the spectral information for obtaining the at least one item of nail information on the at least one nail (130), wherein, by evaluating the at least one item of reference information on the at least one reference position when evaluating the spectral information, the measurement position for any item of nail information on the at least one nail (130) is obtained.
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A61B 5/145 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value
A61B 5/1455 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value using optical sensors, e.g. spectral photometrical oximeters
The invention is in the field of generation of chemometric models for spectrometers. It relates to a computer- implemented method for generating a chemometric model for a spectrometer comprising: a) receiving spectra of an object and object data associated with a physical or chemical characteristic of the object, b) augmenting the provided spectra and the associated object data, c) generating at least two different candidate chemometric models comprising d) training the candidate chemometric models using the augmented spectra and the object data, e) determining the prediction accuracy of the trained candidate chemometric models, f) selecting a chemometric model of the trained candidate chemometric models using the prediction accuracy and g) outputting the selected chemometric model.
G16C 20/70 - Machine learning, data mining or chemometrics
G16C 20/20 - Identification of molecular entities, parts thereof or of chemical compositions
G16C 20/30 - Prediction of properties of chemical compounds, compositions or mixtures
G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
The invention is in the field of generation of chemometric models for spectrometers. It relates to a computer-implemented method for generating a chemometric model for a spectrometer comprising: a) receiving spectra of an object and object data associated with a physical or chemical characteristic of the object, b) generating at least two different candidate chemometric models comprising i) a pre-processing method, ii) a machine learning method, iii) a feature selection filter, c) training the candidate chemometric models, d) determining the prediction accuracy of the trained candidate chemometric models, e) selecting the trained candidate chemometric model with the highest prediction accuracy and f) outputting the selected trained chemometric model.
G16C 20/70 - Machine learning, data mining or chemometrics
G16C 20/20 - Identification of molecular entities, parts thereof or of chemical compositions
G16C 20/30 - Prediction of properties of chemical compounds, compositions or mixtures
G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
36.
CALIBRATION TRIGGER OF SMARTPHONE SPECTROMETER MODULE USING SENSOR FUSION
The present invention relates to a method for deriving at least one item of correction information, wherein the method comprises the following steps: a) receiving at least one item of sensor information provided by at least one external providing sensor (170) comprised by an external device (168) by using a connection interface (166) of the spectrometer device (162); b) comparing the item of sensor information to at least one predetermined condition for starting a correction procedure in order to update an item of correction information on the spectrometer device (162) for the spectrometer device (162) by using at least one evaluation unit.
The present invention relates to a method for calibrating a spectrometer device (128) for obtaining an item of calibration information on the spectrometer device (128), the method comprising the following steps: a) obtaining at least one item of temperature variation information on at least one component of the spectrometer device (128) by monitoring the temperature of the at least one component of the spectrometer device (128) by using at least one temperature sensor (132) of the spectrometer device (128); b) generating at least one item of measurement information on the spectrometer during a change of the temperature of the at least one component of the spectrometer device (128) by using a measuring unit (134) of the spectrometer device (128), wherein the change of the temperature is determined by evaluating the item of temperature variation information by using an evaluation unit (136) of the spectrometer device (128), wherein the at least one item of measurement information is obtained in a temperature resolved manner, wherein the at least one item of measurement information is a measurement value generated in a measurement process; C) obtaining at least one item of calibration information on the spectrometer device (128) by evaluating the item of measurement information on the spectrometer by further using the evaluation unit (136) of the spectrometer device (128), wherein, for obtaining the at least one item of calibration information on the spectrometer device (128), at least one deviation between an item of reference information on a known reference value and the at least one item of measurement information is determined, wherein generating the item of measurement information is started when any predetermined condition is met, wherein a fourth predetermined condition is that an external device (156) comprising the spectrometer device (128) is in a stand-by mode.
G01N 21/27 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
The present invention relates to a measurement device (110) for a spectrometer device (112), wherein the measurement device (110) comprises: (1) at least one object holder (114); wherein the object holder (114) is configured for receiving an object (118); (2) at least one mounting unit (116); wherein the mounting unit (116) is configured for accommodating the spectrometer device (112); wherein the measurement device (110) is configured for aligning at least one measurement position (120, 121) on the object (118) relative to a measurement spot (124) of the spectrometer device (112) for obtaining at least one item of spectral information at the measurement position (120, 121).
SPECTROMETER DEVICE FOR OBTAINING SPECTROSCOPIC INFORMATION ON AT LEAST ONE OBJECT WHEREIN THE IMAGING PLANE OF THE IMAGING SYSTEM IS POSITIONED AT A DISTANCE FROM THE ILLUMINATION PLANE
A spectrometer device (130) and a method for obtaining spectroscopic information on at least one object (110) are disclosed. The spectrometer device (130) comprises: - at least one light emitting element (132) configured for emitting illumination light (134) for illuminating the at least one object (110) in at least one illumination plane (136); - at least one imaging system (140), the imaging system (140) comprising at least one detector (142) configured for detecting detection light (144) from the object (110) and for generating at least one detector signal upon detecting the detection light (144), wherein the imaging system (140) further comprises at least one optical element (148) for guiding the detection light (144) onto the detector (142), wherein the imaging system (140) is configured for receiving the detection light (144) from at least one imaging plane; - at least one sample interface (160) configured for allowing the illumination light (134) to illuminate the object (110) and configured for allowing the detection light (144) from the object (110) to propagate to the imaging system (140), wherein the sample interface (160) is configured for defining a measurement pose of the spectrometer device (130) with respect to the object (110); wherein the imaging plane of the imaging system (140) is positioned at a distance from the illumination plane (136).
The present invention relates to a spectrometer device (130) for obtaining at least one item of spectral information on at least one object (110) by spectral measurement, wherein the spectrometer device (130) comprises: (1) at least one sample interface (132), wherein the sample interface (132) is configured for defining a measurement pose of the object (110), particularly during the spectral measurement, wherein the measurement surface further defines an x-y- plane and, thereby, defines an x-axis and a y-axis; (2) at least one light emitting element (138), wherein the light emitting element (138) is configured for emitting illumination light (140) onto the at least one object (110) in order to generate detection light (142) from the at least one object (110); (3) at least one detector (144), wherein the detector (144) comprises a plurality of photosensitive elements (164), wherein each of the photosensitive elements (164) is configured for generating at least one detector (144) signal when receiving the detection light (142) from the object (110) in order to obtain the item of spectral information; wherein the spectrometer device (130) is configured in a manner that received detection light (142) of at least two photosensitive elements (164) of the plurality of photosensitive elements (164) each show an angular distribution θicxyy) on the sample interface, wherein the at least two angular distributions θicxyy) of the at least two photosensitive elements (164) at least partially overlap.
A spectrometer device (130) and a method for obtaining spectroscopic information on at least one object (110) are disclosed. The spectrometer device (130) comprises: - at least one light emitting element (132) configured for emitting illumination light (134) for illuminating the at least one object (110) with at least two object illumination spots (188), specifically with at least two disjoint object illumination spots, in at least one object illumination plane (136), wherein each object illumination spot (188) has a centroid (190), wherein the centroids (190) of the object illumination spots (188) define an object illumination line (192); - at least one imaging system (140), the imaging system (140) comprising at least one detector (142) configured for detecting detection light (144) from the object (110) and for generating at least one detector signal upon detecting the detection light (144), wherein the imaging system (140) further comprises at least one optical element (148) for guiding the detection light (144) onto the detector (142), wherein the imaging system (140) is configured for receiving the detection light (144) from at least one imaging plane, wherein the imaging system (140) is configured for receiving the detection light (144) from at least one elliptic light collection profile (196) in the imaging plane, wherein a major axis (194) of the elliptic light collection profile (196) is non-parallel to the object illumination line (192); and - at least one sample interface (160) configured for allowing the illumination light (134) to illuminate the object (110) and configured for allowing the detection light (144) from the object (110) to propagate to the imaging system (140), wherein the sample interface (160) is configured for defining a measurement pose of the spectrometer device (130) with respect to the object (110).
A method for evaluating degradation of a photodetector (112), the photodetector (112) comprising at least one photosensitive element (116), the photodetector (112) being configured for generating at least one detector current depending on an illumination of the photosensitive element (116) by light, the photodetector (112) further comprising at least one evaluation unit (120) for evaluating the detector current, wherein method comprises: a) determining at least one detector current; b) evaluating the detector current with respect to at least one reference value to obtain at least one relative detector current value; and c) deriving at least one item of degradation information on the photosensitive element (116) using the relative detector current value, the item of degradation information describing the degradation of performance due to temperature hysteresis behavior, aging, excessive temperatures and/or excessive illumination.
The present invention relates to a method for obtaining at least one item of object condition information on an object (147), the method comprising: i. acquiring image data of the object (147) by using at least one image generation unit (134); ii. evaluating the image data for obtaining at least one item of information on a local characteristic of the object (147); and evaluating the at least one item of information on the local characteristic of the object (147) for obtaining one or more measurement positions on the object (147); iii. acquiring at least one item of spectral information on the object (147) at the one or more measurement positions by using a spectrometer device (138); and iv. evaluating the item of spectral information for obtaining the at least one item of object condition information on the at least one object (147), wherein evaluating the item of spectral information for obtaining the at least one item of object condition information on the at least one object (147) further comprises evaluating the image data for obtaining the at least one item of object (147) condition information.
The invention is in the area of generation of datasets for biometric recognition. It relates to a computer-implemented method for generating datasets for training a biometric recognition system comprising a. receiving context information associated with hardware components of the biometric capture device, b. generating a dataset for training a biometric recognition system by providing the context information to a generative model which is configured to receive context information as input and output a dataset for training a biometric recognition system based on the context information, and c. outputting the dataset.
skimminginitialskimming,jactual,kactual,k of at least one further pixel k (132) of the plurality of pixels (122) with k ≠ j; c) comparing the initial signal value of the further pixel k (132) and the actual signal value of the further pixel k (132), by using at least one processor (134), wherein the further pixel k (132) is detected as out-of-line pixel (116) in case the initial signal value and the actual signal value differ by more than at least one predefined tolerance.
The present invention relates to an optical element (110), wherein the optical element (110) comprises: (1) at least one first Vertical-Cavity Surface-Emitting Laser (112), wherein the first Vertical-Cavity Surface-Emitting Laser (112) comprises an active area situated on a bottom surface of the first Vertical-Cavity Surface-Emitting Laser (112); (2) at least one second Vertical-Cavity Surface-Emitting Laser (118), wherein the second Vertical-Cavity Surface-Emitting Laser (118) comprises an active area situated on a top surface of the second Vertical-Cavity Surface-Emitting Laser (118), wherein the top surface is opposite of a bottom surface of the second Vertical-Cavity Surface-Emitting Laser (118); (3) at least one supporting member (126); wherein the first Vertical-Cavity Surface-Emitting Laser (112) is arranged with the bottom surface on the supporting member (126); and wherein the second Vertical-Cavity Surface-Emitting Laser (118) is arranged with the bottom surface on the supporting member (126).
G01B 11/25 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. moiré fringes, on the object
The invention is in the area of biometric recognition. It relates to a biometric recognition system for recognizing a user from its hand comprising: a. projector for projecting light onto the hand of the user, b. a camera for recording an image of the hand, and c. a processor configured to i. extract features of the hand of the user for comparing them to reference features, ii. determine from the image if the hand is made of skin, and iii. generating a recognition signal based on the feature comparison and the skin determination.
A method for measuring blood perfusion of an object, the method comprising: receiving an image generated while the object is illuminated by coherent infrared light, generating a plurality of partial images based on the image, providing the plurality of partial images to a data-driven model based on a location of the plurality of partial images within the image for determining a material property measure, wherein the data-driven model is trained based on historical partial images provided to the data-driven model based on a location of the historical partial images and corresponding material property measures, providing the material property measure.
A method for authenticating an authorized user, the method comprising: receiving a request to access a resource, in response to receiving the request to access the resource triggering to illuminate the object by light, and triggering to generate an image of the object while the object is being illuminated by the light, receiving a template image of the authorized user, providing the image and the template image to a data-driven model for determining if the object associated with the image corresponds to the authorized user, wherein the data-driven model is trained with a plurality of training images obtained by generating a plurality of synthetic representations of a human generated from a representation of the human and augmenting the plurality of synthetic representations of a human to generate a plurality of training images, allowing the authorized user to access a resource in response determining that the object corresponds to the authorized user.
G06F 18/214 - Generating training patternsBootstrap methods, e.g. bagging or boosting
G06F 18/2413 - Classification techniques relating to the classification model, e.g. parametric or non-parametric approaches based on distances to training or reference patterns
G06F 21/32 - User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
G06V 40/16 - Human faces, e.g. facial parts, sketches or expressions
51.
OPTICAL ELEMENTS ON FLOOD VCSELS FOR 2IN1 PROJECTORS
An optoelectronic apparatus (112) is proposed which is configured for emitting at least one infrared light pattern comprising a plurality of infrared light beams and for emitting infrared flood light, comprising: - a light emitter structure (114) comprising a plurality of light emitters (116), wherein a first array (118) of light emitters (116) of the plurality of light emitters (116) forms a pattern illumination source (120) configured for emitting the infrared light pattern, wherein a second array (122) of light emitters (116) of the plurality of light emitters (116), different from the light emitters (116) of the first array (118), forms a flood illumination source (124) configured for emitting the infrared flood light; - a base (125) providing a single plane for mounting the light emitters (116); - at least one system of optical elements (126) comprising a plurality of optical elements, wherein the system of optical elements (126) is configured for focusing the emitted infrared light pattern onto a focal plane, wherein the system of optical elements (126) covers the light emitter structure (114); - at least one flood light optical element (130) configured for defocusing light emitted by the light emitters (116) of the flood illumination source (124) thereby forming overlapping light spots, wherein the flood light optical element (130) is configured for leaving the emitted infrared light pattern uninfluenced.
G01B 11/25 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. moiré fringes, on the object
An optoelectronic apparatus (112) is proposed configured for emitting at least one infrared light pattern (124) comprising a plurality of infrared light beams and for emitting infrared flood light (128), comprising: - a base (114) providing at least four platforms (116) of alternating heights with respect to the base (114), wherein the heights of the platforms (116) alternate between a first height and a second height, different from the first height; - a light emitter structure (118) comprising a plurality of light emitters (120), wherein at least one light emitter (120) is mounted on each platform (116), wherein the light emitters (120) mounted on platforms (116) of the first height form a pattern illumination source (122) configured for emitting the infrared light pattern (124), wherein the light emitters mounted on platforms (116) of the second height form a flood illumination source (126) configured for emitting the infrared flood light (128).
G01B 11/25 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. moiré fringes, on the object
The invention is in the field of portable spectrometer devices. It relates to a spectrometer comprising a. an interface to an application, wherein the interface is configured to receive a request for performing a spectroscopic measurement and to provide spectroscopic measurement results to the application, b. a spectrometer module which is configured to receive electromagnetic radiation and generate spectroscopic data comprising intensity values, wherein each intensity value is indicative of the intensity of the electromagnetic radiation in at least a part of its spectral range, and c. a processor which is configured to trigger the spectrometer module to execute a spectroscopic measurement in response to a request received through the interface and to receive spectroscopic data from the spectrometer module, wherein the processor is further configured to derive composition data from the spectroscopic data and to provide the spectroscopic data and the composition data to the interface.
G01N 21/27 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
54.
SKIN ROUGHNESS AS SECURITY FEATURE FOR FACE UNLOCK
A computer-implemented method for authenticating a user (114) of a device (102) is proposed. The method comprising: a. (302) receiving a request for accessing one or more functions associated with the device (102); b. executing at least one authentication process comprising the following steps: b.1 (304) triggering to illuminate the user (114) by coherent electromagnetic radiation associated with a wavelength between 850 nm and 1400 nm, b.2 (306) triggering to generate at least one speckle image of the user (114) while the user is being illuminated by the coherent electromagnetic radiation, b.3 (308) determining at least one surface roughness measure based on the speckle image, b.4 (310) authenticating the user (114) or denial using the surface roughness measure.
The invention is in the field of portable spectrometer devices. It relates to a spectrometer comprising a. an interface to an application, wherein the interface is configured to receive a request for performing a spectroscopic measurement and to provide spectroscopic measurement results to the application, b. a spectrometer module which is configured to receive electromagnetic radiation and generate spectroscopic data comprising intensity values, wherein each intensity value is indicative of the intensity of the electromagnetic radiation in at least a part of its spectral range, and c. a processor which is configured to trigger the spectrometer module to execute a spectroscopic measurement in response to a request received through the interface and to receive spectroscopic data from the spectrometer module, wherein the processor is further configured to derive composition data from the spectroscopic data and to provide the spectroscopic data and the composition data to the interface.
A device (110) for authenticating a user (112) is proposed. The device (110) comprising: - at least one projector (116) configured for projecting a plurality of light beams through at least one display (118) onto the user (112), - at least one image generation unit (122) configured for generating a pattern image showing the projecting of the plurality of light beams onto the user (112); - at least one processor (124) configured for extracting liveness data from the pattern image and allowing the user (112) to perform an operation on the device (110) that requires authentication based on the liveness data; - at least one control unit (126) and at least one status inquiry device (128) configured for retrieving at least one item of status information on a current environmental status of the device (110), wherein the control unit (126) is configured for automatically triggering at least one calibration depending on the fulfillment of at least one predetermined environmental status condition.
It relates to a method (110) for verifying at least one attribute of a virtual character in a virtual environment associated with a user, the method (110) comprising: -receiving a request (112) to verify at least one attribute of the virtual character, -receiving at least one pattern image (114) showing the user associated with the virtual character while the user is being illuminated by patterned infrared illumination, -determining if the user corresponds to a living human (116) based on the at least one pattern image, -providing an indication (118) on that the at least one attribute of the virtual character is verified based on the determining if the user corresponds to a living human based on the at least one pattern image.
The invention relates to the field of biometric authentication, in particular to the field of anti-spoofing. The disclosure relates to methods, apparatuses, devices, material information and computer elements for authorizing a user of a device to perform at least one operation that requires authentication.
The present invention relates to an optical element (110), wherein the optical element (110) comprises: (1) at least one lens element (112), wherein the lens element (112) comprises at least one optical lens (114); (2) at least one optoelectronic component (116), wherein the optoelectronic component (116) is configured for emitting and/or detecting light (126) through the optical lens (114); (3) at least one supporting member (118), wherein the optoelectronic component (116) is arranged between the lens element (112) and the supporting member (118); and (4) at least one electrical wire (120), wherein the electrical wire (120) is secured to the supporting member (118), wherein the electrical wire (120) secures the optical lens (114) to the optoelectronic component (116) in a manner that it breaks when the optical lens (114) dislocates from the optoelectronic component (116) so that at least a portion of the illumination light (126) emitted and/or detected by the optoelectronic component (116) avoids the optical lens (114).
F21V 5/04 - Refractors for light sources of lens shape
F21V 17/10 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
F21V 25/04 - Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken breaking the electric circuit
G01S 7/481 - Constructional features, e.g. arrangements of optical elements
G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging
G06V 40/16 - Human faces, e.g. facial parts, sketches or expressions
H01S 5/068 - Stabilisation of laser output parameters
H01S 5/183 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
The invention relates to the field of biometric authentication, in particular to the field of anti-spoofing. The disclosure relates to methods, apparatuses, devices, material information and computer elements for generating biometric authentication information.
A photodetector (112) is disclosed, comprising at least one photosensitive element (120) having a resistance depending on an illumination by light, wherein the photodetector (112) further comprises at least one readout circuit (124), the readout circuit (124) comprising: - at least one input circuit (126) configured for providing at least one bias voltage (128) to the photosensitive element (120), the bias voltage (128) being adaptable between at least one first voltage (130) in an illumination phase (132) and ground (134) in a dark phase (136); - at least one integrator circuit (142) for storing photoelectric charges generated by the photosensitive element (120), the integrator circuit (142) comprising at least one operational amplifier (144) and at least one capacitor (146), the photosensitive element (120) being connected to an inverting input (148) of the operational amplifier (144) and the capacitor (146) being connected to an output (150) of the operational amplifier (144), wherein the capacitor (146) is configured for storing dark current charges and illumination charges during the illumination phase (132), wherein the integrator circuit (142) is configured for reversing current flow of the dark current charges in the dark phase (136) thereby removing the dark current charges from the capacitor (146); - at least one trimmed voltage divider (152) connected to the input circuit (126) and to a non-inverting input (154) of the operational amplifier (144); and - at least one analog-to-digital converter (164) for converting the illumination charges stored in the integrator circuit (142) into one voltage value (182). Further disclosed is a system (110) comprising the photodetector (112), a method for converting illumination charges and a computer program and a computer-readable storage medium for performing the method.
A spectrometer device (110) for obtaining spectroscopic information on at least one object (112) is disclosed, comprising at least one detector (114) for detecting light; at least one light source (118) configured for emitting light in at least one optical spectral range; at least one sample interface (120) configured for allowing the emitted light of the light source (118) to leave the spectrometer device (110) through the sample interface (120) and configured for allowing detection light to enter the spectrometer device (110) through the sample interface (120), wherein the sample interface (120) comprises at least one optical element configured for providing at least one internal calibration target; at least one optical path (122), wherein the optical path (122) is configured for allowing the emitted light of the light source (118) to propagate to the sample interface (120) and for allowing detection light to propagate to the detector (114), wherein the optical path (122) is further configured for allowing the emitted light of the light source (118) to propagate to the internal calibration target and for allowing reference emission to be directed by the internal calibration target to the detector (114). The spectrometer device (110) is configured for separating the reference emission and the detection light from each other by polarization multiplexing. The spectrometer device (110) is configured for I. (138) illuminating through the sample interface (120) with light having a first polarization via the at least one optical path (122) to obtain at least one first detector signal relating to the detection light; II. (140) illuminating the internal calibration target with light having a second polarization, different from the first polarization, via the optical path (122) to obtain at least one calibration signal relating to the reference emission; and III.(142) determining at least one item of calibration information by using the first detector signal and the calibration signal.
G01N 21/27 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
G01N 21/359 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
A method for authenticating a user of a device (110) is disclosed. The method comprising: a. projecting (130) a plurality of light beams through a display (114) onto the user by a projector (112), wherein an emission angle of the projector (112) is below or equal to 60°, b. generating (132) a pattern image showing the projecting of the plurality of light beams onto the user, c. extracting (134) liveness data from the pattern image, d. allowing (136) the user to perform an operation on the device (110) that requires authentication based on the liveness data.
The invention relates to a spectrometer device (110) for determining an item of spectral information on at least one object (112), the spectrometer device (110) comprising: - at least one sample interface (130), wherein the sample interface (130) defines at least one component of a predetermined pose of the object (112) when the item of spectral information is determined; - at least one light emitting element (116), wherein the at least one light emitting element (116) is designated to emit illumination light (118) onto the object (112) for generating object light (119); - at least two photosensitive detectors (122) that generate at least two detector signals when receiving light, wherein the photosensitive detectors (122) are designated to receive at least a portion of the generated object light (119); - at least one evaluation unit (140), wherein the at least one evaluation unit (140) is configured to consider the detector signals of the at least two photosensitive detectors (122) for determining an item of placement information on the object (112).
A method for authenticating a user of a device comprising an illumination source, the method comprising: a) receiving a visible light image showing the object while the object is illuminated with visible light, b) receiving an IR pattern image showing the object while the object is illuminated with an infrared light pattern emitted from the illumination source, c) determining if a material indicator associated with the object shown in the IR pattern image corresponds to a living organism, in particular by providing the IR pattern image to an IR data-driven model parametrized based on an IR training data set comprising at least one training IR pattern image and at least one training material indicator, wherein the IR data-driven model provides a material indicator based on the IR pattern image, d) determining if the object shown in the visible light image corresponds to an authorized user, and, e1) allowing the object to access at least one function of the device based on determining that the object shown in the visible light image corresponds to an authorized user and determining that the material indicator corresponds to a living subject, or e2) declining the object to access at least one function of the device based on determining that the object shown in the visible light image corresponds to an unauthorized object and/or the material indicator corresponding to a non-living subject.
The invention relates to an optical unit (114) for a spectrometer device (112) for analyzing at least one sample (116). The optical unit (114) comprises a plurality of light emitting elements (120) configured for emitting light for illuminating the sample (116); a conical light guide (122) comprising at least one scattering element (124) arranged between opposing, differently sized openings (126) of the conical light guide (122), the conical light guide (122) being configured for scattering at least part of the light emitted by the light emitting elements (120); at least one reflector (128) configured for reflecting at least part of the light scattered by the light guide (122) in a direction toward the sample (116), wherein the light emitting elements (120) and the reflector (128) are arranged on a side of the conical light guide (122) having the bigger opening (130), wherein the sample (116) is placeable on a side of the conical light guide (122) having the smaller opening (132). Further disclosed are a spectrometer device (112), a spectrometer system (110) and various uses of the spectrometer device (112).
G01N 21/3563 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solidsPreparation of samples therefor
The invention relates to a method for generating an IR image by a detector (110), wherein the detector (110) comprises a first plurality of IR pixels (112, 118, 236) and at least one second plurality of IR pixels (112, 118, 238), wherein the IR pixels (112, 118) comprised by the detector (110) are arranged in a plurality of rows, wherein the first plurality of IR pixels (112, 118, 236) comprises at least one first row of IR pixels (237) of the plurality of rows, wherein the at least one second plurality of IR pixels (112, 118, 238) comprises at least one second row of IR pixels (239) of the plurality of rows, wherein a read out of the pixels (112, 118, 122) for determining the pixel values is performed sequentially by reading out the at least one first row and then reading out the at least one second row, the method comprising: - illuminating an object by IR light; - receiving detection light from the object generated by the illuminated IR light at the first plurality of I R pixels (112, 118, 236); - determining the pixel values of the first plurality of IR pixels (112, 118, 236) by reading out the at least one first row of IR pixels (237), wherein illuminating the object is stopped before reading out the at least one first row; - further illuminating the object by IR light; - receiving detection light from the object generated by the illuminated IR light at the second plurality of IR pixels (112, 118, 238); - determining the pixel values of the second plurality of IR pixels (112, 118, 238) by reading out the at least one second row of IR pixels (239), wherein further illuminating is stopped before reading out the at least one second row; - providing the IR image based on the pixel values of the first plurality of IR pixels (112, 118, 236) and the pixel values of the at least one second plurality of IR pixels (112, 118, 238).
H04N 25/131 - Arrangement of colour filter arrays [CFA]Filter mosaics characterised by the spectral characteristics of the filter elements including elements passing infrared wavelengths
H04N 23/11 - Cameras or camera modules comprising electronic image sensorsControl thereof for generating image signals from different wavelengths for generating image signals from visible and infrared light wavelengths
H04N 25/531 - Control of the integration time by controlling rolling shutters in CMOS SSIS
H04N 23/12 - Cameras or camera modules comprising electronic image sensorsControl thereof for generating image signals from different wavelengths with one sensor only
H04N 23/56 - Cameras or camera modules comprising electronic image sensorsControl thereof provided with illuminating means
68.
SPECTRAL SENSING DEVICE AND METHOD OF DETERMINING AT LEAST ONE RELATIVE TIME-CORRECTED DETECTOR SIGNAL OF AT LEAST ONE SAMPLE
A spectral sensing device (110) is disclosed, comprising - at least one first light source (112) configured for emitting light in at least one first optical spectral range and at least one second light source (114) configured for emitting light in at least one second optical spectral range; - at least one detector (122) comprising a plurality of sensor elements (124), wherein each of the sensor elements (124) is configured for generating at least one detector signal in response to an illumination of the sensor element (124) by incident light; - at least one sample interface (128) configured for allowing light emitted from the first light source (112) to illuminate at least one sample (130); - at least one first optical path (132) configured for allowing light emitted from the first light source (112) to propagate to the detector (122) by passing the sample interface (128) at least once; and - at least one second optical path (134) allowing light emitted from the second light source (114) to propagate to the detector (122) without passing the sample interface (128), wherein the second light source (114) is positioned to illuminate each of the sensor elements (124) with the entire second optical spectral range. Further disclosed are a method of determining at least one relative time-corrected detector signal of at least one sample (130), a computer program and a computer-readable storage medium for performing the method.
A method for measuring a surface roughness associated with an object, the method comprising: a) receiving a speckle image showing an object while being illuminated by coherent electromagnetic radiation associated with a wavelength between 850 nm and 1400 nm, b) determining a surface roughness measure based on the Speckle image, c) providing the surface roughness measure.
A method for authenticating a user of a device (110) is proposed. The method comprising: a. projecting (130) a plurality of light beams through a display (114) onto the user by a projector (112), wherein the plurality of light beams comprises a first light beam and a second light beam, and directing the first light beam and the second light beam to illuminate an at least partially overlapping area of the user by the display (114), b. generating (132) a pattern image showing the projecting of the plurality of light beams onto the user, c. extracting (134) liveness data from the pattern image, d. allowing (136) the user to perform an operation on the device (110) that requires authentication based on the liveness data.
The present invention refers to a spectrometer device (110) for obtaining spectroscopic information on at least one object (112), the spectrometer device (110) comprising: i. at least one first light source (114) for generating illumination light (116) for illuminating the object (112), the first light source (114) comprising at least one first light-emitting diode (118) and at least one first luminescent material (120) for light-conversion of primary light generated by the first light-emitting diode (118); ii. at least one second light source (114') for generating illumination light (116') for illuminating the object (112), the second light source (114') comprising at least one second light-emitting diode (118') and at least one second luminescent material (120') for light-conversion of primary light generated by the second light-emitting diode (118'); iii. at least one detector (128) for detecting detection light (130) from the object (112) and for generating at least one detector signal for each of the first light source (114) and the second light source (114') thereby; iv. at least one driving unit (138) for electrically driving the first light source (114) and the second light source (114'), the driving unit (138) being configured for jointly driving the first light source and the second light source; and v. at least one evaluation unit (136) for evaluating the detector signals generated by the detector (128) and for deriving the spectroscopic information on the object (112) from the detector signals.
H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different subclasses of , , , , or , e.g. forming hybrid circuits
A spectrometer device (110) for obtaining spectroscopic information on at least one object (112) is disclosed. The spectrometer device (110) comprises: - at least one detector (116) for detecting light from an object (112); - at least one optical filter (122) configured for transferring incident light within at least one selected wavelength range onto the detector (116); - at least one light source (126) configured for emitting light in at least one optical spectral range; - at least one sample interface (132) configured for allowing the emitted light of the light source(126) to illuminate an object (112) held by the sample interface (132) and configured for allowing light from the object (112) held by the sample interface (132) to propagate via the optical filter (122) to the detector (116), wherein the sample interface (132) comprises at least one module cover window (134) comprising at least one substrate (136), wherein the module cover window (134) comprises at least one internal calibration target (138) partially covering the substrate (136); - at least one first optical path (140), wherein the first optical path (140) is configured for allowing the emitted light of the light source (126) to propagate via the optical filter (122) to the detector (116) by passing the sample interface (132) at least once; and - at least one second optical path (142), wherein the second optical path (142) is configured for allowing the emitted light of the light source (126) to propagate via the optical filter (122) to the detector (116) by interacting with the internal calibration target (138) at least once.
A spectrometer device (110) and a method of obtaining spectroscopic information on at least one object (112) are disclosed. The spectrometer device (110) comprises: i. at least one light source (114) for generating illumination light (116) for illuminating the object (112), the light source (114) comprising at least one light-emitting diode (118) and at least one luminescent material (120) for light-conversion of primary light generated by the light-emitting diode (118) into secondary light, wherein the illumination light (116) at least partially comprises the primary light and the secondary light; ii. at least one broadband detector (128) for detecting detection light (130) from the object (112) in a spectral range at least partially comprising the spectral ranges of the primary light and the secondary light, wherein the broadband detector (128) is configured for generating at least one primary detector signal upon detecting the detection light (130) in the spectral range of the primary light, wherein the broadband detector (128) is further configured for generating at least one secondary detector signal upon detecting the detection light (130) in the spectral range of the secondary light; and iii. at least one evaluation unit (136) for evaluating the primary detector signal and the secondary detector signal generated by the broadband detector (128), for determining temperature information (137) on the light source (114) from one of the primary detector signal or the secondary detector signal, and for deriving the spectroscopic information on the object (112) from the other of the primary detector signal or the secondary detector signal by taking into account the temperature information (137) on the light source (114).
A spectrometer device (110) and a method of obtaining spectroscopic information on at least one object (112) are disclosed. The spectrometer device (110) comprises: at least one light source (114) for generating illumination light (116) for illuminating the object (112), the light source (114) comprising at least one light-emitting diode (118) and at least one luminescent material (120) for light-conversion of primary light generated by the light-emitting diode (118) into secondary light; ii. at least one broadband detector (128) for detecting detection light (130) in a spectral range at least partially comprising the spectral ranges of the primary light and the secondary light, wherein the broadband detector (128) is configured for generating at least one primary detector signal upon detecting the detection light (130) in the spectral range of the primary light, wherein the broadband detector (128) is further configured for generating at least one secondary detector signal upon detecting the detection light (130) in the spectral range of the secondary light; and iii. at least one evaluation unit (136) for evaluating the primary detector signal and the secondary detector signal generated by the broadband detector (128), for determining responsivity information (137) on the broadband detector (128) from one of the primary detector signal or the secondary detector signal, and for deriving the spectroscopic information on the object (112) from the other of the primary detector signal or the secondary detector signal by taking into account the responsivity information (137) on the broadband detector (128).
A spectrometer device (110) and a method of obtaining spectroscopic information on at least one object (112) are disclosed. The spectrometer device (110) comprises: i. at least one light source (114) for generating illumination light (116) for illuminating the object (112), the light source (114) comprising at least one light-emitting diode (118) and at least one luminescent material (120) for light-conversion of primary light generated by the light-emitting diode (118) into secondary light, wherein the illumination light (116) at least partially comprises the primary light and the secondary light; ii. at least one broadband detector (128) for detecting detection light (130) from the object (112) in a spectral range at least partially comprising the spectral ranges of the primary light and the secondary light, wherein the broadband detector (128) is configured for generating at least one primary detector signal upon detecting the detection light (130) in the spectral range of the primary light, wherein the broadband detector (128) is further configured for generating at least one secondary detector signal upon detecting the detection light (130) in the spectral range of the secondary light; and iii. at least one evaluation unit (136) for evaluating at least one of the primary detector signal and the secondary detector signal generated by the broadband detector (128) and for determining the spectroscopic information on the object (112) from at least one of the primary detector signal and the secondary detector signal.
H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different subclasses of , , , , or , e.g. forming hybrid circuits
78.
CALIBRATION AND OPERATION METHODS FOR DEVICES FOR MONITORING AN EMISSION TEMPERATURE
The invention refers to a calibration method of assembling a set of items of information for use in a method for operating a measurement device (110) for monitoring an emission temperature of at least one radiation emitting element (114), wherein the measurement device (110) comprises a detector module (112), a transition material (116) and an assembly unit (111 ), wherein the detector module (112) and the transition material (116) are designated for being integrated into the assembly unit (111) when performing the method for operating a measurement device (110) for monitoring an emission temperature of at least one radiation emitting element (114) in a manner that the transition material (116) is arranged between the detector module (112) and the radiation emitting element (114) such that radiation generated by the radiation emitting element (114) incident onto the detector module (112) is propagating through the transition material (116), wherein the detector module (112) is designated for generating at least one sensor signal depending on an intensity of the thermal radiation, the method comprising the following steps: (i) performing a plurality of calibration measurements for determining at least one relationship (352) between at least one sensor signal and at least one temperature of a radiation emitting element (114) by measuring a plurality of sensor signals for at least two different emission temperatures of at least one radiation emitting calibration element when the detector module (112) and the transition material (116) are separate from the assembly unit (111); (ii) performing at least one further calibration measurement for determining at least one correction for the at least one relationship (352) by measuring at least one sensor signal for at least one known emission temperature of at least one radiation emitting calibration when the detector module (112) and the transition material (116) are integrated in the assembly unit (111); (iii) recording the relationship (352) and the correction.
G01J 5/20 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using resistors, thermistors or semiconductors sensitive to radiation, e.g. photoconductive devices
The invention is in the area of polymer compositions containing carbon particles suitable for infrared spectroscopy. It relates to a polymer composition containing - a polymer, - carbon particles and - a laser absorbing additive, wherein at least a part of the surface of the polymer composition absorbs less infrared radiation than the bulk.
A display device (100) is disclosed, comprising: - at least one pattern illumination source (112) configured for emitting an infrared light pattern (116), - at least one flood illumination source (114) configured for emitting infrared flood light (118), - at least one image generation unit (150) configured for generating at least one pattern image while the pattern illumination source (112) is emitting the infrared light pattern (116) and configured for generating at least one flood image while the flood illumination source (114) is emitting infrared flood light (118), - at least one masking element (130) configured for covering at least one contiguous area around the flood illumination source (114) and/or the pattern illumination source (112), - at least one display (140) configured for displaying content, wherein the display (140) covers at least partially the pattern illumination source (112), the flood illumination source (114), the masking element (130) and/or the image generation unit (150).
BiasoutRefRefBiasoutRef RefoutRef Ref through the reference resistor (182) thereby estimating the bias voltage influence for obtaining the spectroscopic information, wherein the spectroscopic information on the object (112) is compensated for the bias voltage influence.
G01J 5/90 - Testing, inspecting or checking operation of radiation pyrometers
G01J 5/44 - Radiation pyrometry, e.g. infrared or optical thermometry using extension or expansion of solids or fluids using change of resonant frequency, e.g. of piezoelectric crystals
A spectrometer device (110) and a method of obtaining spectroscopic information on at least one object (112) are disclosed. The spectrometer device (110) comprises: i. at least one light source (114) for generating illumination light (116) for illuminating the object (112); ii. at least one detector (128) for detecting detection light (130) from the object (112) and generating at least one detector signal; iii. at least one driving unit (138) for electrically driving the light source (114); iv. at least one multi-channel read-out integrated circuit (139), wherein each channel of the multi-channel read-out integrated circuit (139) comprises at least one buffered direct injection (BDI) circuit (141), wherein the BDI circuit (141 ) is configured for read-out of the detector signal, wherein the BDI circuit (141) is configured for generating at least one item of information on an electrically measurable quantity required for driving the light source (114), wherein the multi-channel read-out integrated circuit (139) comprises at least one multi-channel read-out application-specific integrated circuit (ASIC) (142) configured for synchronous sampling the detector signal and the item of information on the electrically measurable quantity required for driving the light source (114); and v. at least one evaluation unit (136) for evaluating at least one detector signal generated by the detector (128) and for deriving the spectroscopic information on the object (112) from the detector signal, wherein the evaluation unit (136) is configured for taking into consideration the item of information on the electrically measurable quantity required for driving the light source (114) when deriving the spectroscopic information from the detector signal.
The invention relates to a method of operating a spectrometer device (110) for obtaining spec troscopic information on at least one object (112), the method comprising, particularly, evaluating the detector (128) signal deriving the spectroscopic information on the object (112) thereof by using at least one evaluation unit (136) of the spectrometer device (110), the evaluation unit (136) being configured for selecting at least one item of correction information from a predetermined set of items of correction information in accordance with the actual value of the at least one operating parameter and for taking the selected item of correction information into account for the deriving of the spectroscopic information. The invention further relates to, a calibration method of assembling a set of items of correction information, a spectrometer device (110) for obtaining spectroscopic information on at least one object (112), a computer program, a computer-readable storage medium and to a non-transient computer-readable medium. The invention has the advantage that the operating parameter may provide for a reliable correction parameter, particularly as the ambient temperature may be considered. Thereby, a fluctuation in a spectral flux of the at least one light source (114) and/or in spectral property, specifically a shift, of the at least one light source (114) may be compensated.
A spectrometer device (110) for obtaining spectroscopic information on at least one object (112) is proposed. The spectrometer device (110) comprises: i. at least one light source (114) for generating illumination light (116) for illuminating the object (112), the light source (114) comprising at least one light-emitting diode (118) and at least one luminescent material (120) for light-conversion of primary light generated by the light-emitting diode (118); ii. at least one detector (128) for detecting detection light (130) from the object (112); iii. at least one driving unit (138) for electrically driving the light source (114); iv. at least one measurement unit (139) for generating at least one item of information on at least one electrically measurable quantity, in particular a forward voltage, required for driving the light-emitting diode (118); and v. at least one evaluation unit (136) for evaluating at least one detector signal generated by the detector (128) and for deriving the spectroscopic information on the object (112) from the detector signal, wherein the evaluation unit (136) is configured for taking into consideration the item of information on the at least one electrically measureable quantity, in particular the forward voltage, when deriving the spectroscopic information from the detector signal.
A spectrometer device (110) for obtaining spectroscopic information on at least one object (112), the spectrometer device (110) comprising: i. at least one light source (114) for generating illumination light (116) for illuminating the object (112), the light source (114) comprising at least one light-emitting diode (118) and at least one luminescent material (120) for light-conversion of primary light generated by the light-emitting diode (118);10 ii. at least one detector (128) for detecting light (116, 130, 256) and, thereby, generating at least one detector signal; iii. at least one evaluation unit (136) configured for deriving the spectroscopic information on the object (112) from the at least one detector signal, wherein the evaluation unit (136) is configured for deriving the spectroscopic information on the object (112) by taking into consideration wavelength correction information.
G01N 21/27 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
G01J 3/10 - Arrangements of light sources specially adapted for spectrometry or colorimetry
H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different subclasses of , , , , or , e.g. forming hybrid circuits
86.
CONSIDERING A TIME CONSTANT FOR OBTAINING SPECTROSCOPIC INFORMATION
A spectrometer device (110) for obtaining spectroscopic information on at least one object (112), the spectrometer device (110) comprising: (i) at least one light source (114) configured for generating illumination light (116) for illuminating the object (112), the light source (114) comprising at least one lightemitting diode (118) and at least one luminescent material (120) for light-conversion of primary light generated by the light-emitting diode (118), wherein the spectrometer device (110) is configured for driving the light source (114) in a manner that the driving state of the light source (114) is changed at least one time; (ii) at least one detector (128) configured for detecting light and, thereby, generating at least one detector signal when the driving state of the light source (114) is changed, wherein the detector signal is time resolved; (iii) at least one evaluation unit (136) configured for deriving the spectroscopic information on the object (112) by detecting detection light from the object (112) by using the detector (128), and further configured for deriving at least one time constant T of the light source (114) describing a property of the light source (114) when the driving state is changed from the time resolved detector signal, wherein the at least one time constant T is considered when the spectroscopic information on the object (112) is derived.
λλ, wherein the evaluation (136) unit is configured for correcting for a temperature dependent drift of the detector (128) in the detector signal Sλ by using the reference detector signal R.
A spectrometer device (110) for obtaining spectroscopic information on at least one object (112) is disclosed. The spectrometer device (110) comprises: i. at least one light source (114) for generating illumination light (116) for illuminating the object (112), the light source (114) comprising at least one light-emitting diode (118) for generating primary light and at least one luminescent material (120) for light-conversion of the primary light into secondary light; ii. at least one detector for detecting detection light from the object (112) and for generating at least one detector signal; iii. at least one driving unit (138) for driving the light source (114) in a manner that the light-emitting diode (118) is generating the primary light, wherein the light-emitting diode (118) is driven with a pulse modulation scheme having a variable duty cycle for controlling an emission power of the secondary light, wherein the duty cycle is varied based on an influencing parameter having an influence on the light- conversion efficiency of the luminescent material (120); and iv. at least one evaluation unit (136) for evaluating the detector signal generated by the detector and for deriving the spectroscopic information on the object (112) from the detector signal. Furthermore, a corresponding method of obtaining spectroscopic information on at least object (112) is disclosed.
H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different subclasses of , , , , or , e.g. forming hybrid circuits
89.
CONSIDERING A PLURALITY OF TIME CONSTANTS τ FOR OBTAINING SPECTROSCOPIC INFORMATION
A spectrometer device (110) for obtaining spectroscopic information on at least one object (112), the spectrometer device (110) comprising: (i) at least one light source (114) configured for generating illumination light (116) for illuminating the object (112), the light source (114) comprising at least one light-emitting diode (118) and at least one luminescent material (120) for light-conversion of primary light generated by the light-emitting diode (118), wherein the spectrometer device (110) is configured for driving the light source (114) in a manner that the driving state of the light source (114) is changed at least one time; (ii) at least one detector (128) configured for detecting detection light (130) from the object (112) and, thereby, generating at least one detector signal when the driving state of the light source (114) is changed, wherein the detector signal is time-resolved; (iii) at least one evaluation unit (136) configured for evaluating the detector signal generated by the detector (128) for deriving the spectroscopic information on the object (112), and further configured for considering a plurality of known time constants (τ) of the light source (114) describing a property of the light source (114) when the driving state is changed for determining a contribution of signal intensities of a plurality of wavelength intervals (236) to the detector signal when the spectroscopic information on the object (112) is derived.
121 212122(T) may provide for a reliable correction parameter. Thereby, a fluctuation in a spectral flux of the at least one light source (114) and/or in spectral property, specifically a shift, of the at least one light source (114) may be compensated.
A method for accessing a vehicle and/or a function of the vehicle, the method comprising: - illuminating the object with patterned infrared illumination; - generating at least one pattern image of the object while the object is being illuminated by the patterned infrared illumination; - determining if the object corresponds to a living human based the at least one pattern image; and - allowing the object to access the vehicle and/or the function of the vehicle based on de- termining that the object corresponds to a living human.
G07C 9/00 - Individual registration on entry or exit
G07C 9/37 - Individual registration on entry or exit not involving the use of a pass in combination with an identity check using biometric data, e.g. fingerprints, iris scans or voice recognition
G06Q 20/14 - Payment architectures specially adapted for billing systems
G06Q 20/30 - Payment architectures, schemes or protocols characterised by the use of specific devices
G06Q 20/32 - Payment architectures, schemes or protocols characterised by the use of specific devices using wireless devices
G06Q 20/40 - Authorisation, e.g. identification of payer or payee, verification of customer or shop credentialsReview and approval of payers, e.g. check of credit lines or negative lists
The present invention relates to an optoelectronic apparatus (112) comprising: - at least one pattern illumination source (114) configured for emitting at least one infrared light pattern comprising a plurality of infrared light spots, wherein the number of infrared light spots is below or equal 4000 spots, - at least one flood illumination source (116) configured for emitting infrared flood light, - at least one image generation unit (118) configured for generating at least one pattern image while the pattern illumination source (114) is emitting the infrared light pattern and configured for generating at least one flood image while the flood illumination source (116) is emitting infrared flood light. The present invention further relates to a use of an optoelectronic apparatus (112), a method for authenticating a user of a device (110), a computer program, a computer-readable storage medium and a non-transient computer-readable medium. The present invention provides an approach of making a rearrangement of the position of the camera as well as an improved operation of active techniques of authentication using devices (110) behind a display (120) possible.
An optoelectronic apparatus (112) is disclosed, comprising: - at least one pattern illumination source (114) configured for illuminating at least one infrared light pattern comprising a plurality of infrared light spots, wherein the number of infrared light spots is below or equal 4000 spots, - at least one flood illumination source (116) configured for emitting infrared flood light, - at least one image generation unit (118) configured for generating at least one pattern image while the pattern illumination source (114) is illuminating infrared light pattern and configured for generating at least one flood image while the flood illumination source (116) is emitting infrared flood light. A relative distance between the flood illumination source (116) and the pattern illumination source (114) is below 3.0 mm. (Figure 1)20
The invention is in the field of authentication system for vehicles. It relates to an authentication system for vehicles comprising a transparent display attached to the vehicle, a projector positioned such that it can illuminate light through the transparent display to a per- son, a camera positioned such that it can receive light from the person through the transparent dis- play, and a processor which receives an image from the camera and is configured to determine if the im- aged person is an authorized person, wherein the processor is configured to output a signal in- dicating if the imaged person is authorized.
A method of obtaining chemical composition information of at least one sample (112) by spectroscopic measurement is proposed. The method comprises the following steps: i. acquiring spectroscopic data of the sample (112) by using at least one spectrometer device (114), within at least one spatial measurement range (118) of the spectrometer device (114); ii. acquiring, by using at least one imaging device (134), image data of a scene (136) within a field of view (138) of the imaging device (134), the scene (136) comprising at least a part of the sample (112) and at least a part of the spatial measurement range (118) of the spectrometer device (114), and analyzing the image data and/or the spectroscopic data thereby determining at least one item of identification information on the sample (112) by using at least one processing device (154); and iii. evaluating the spectroscopic data for obtaining at least one item of sample information by using the processing device (154), wherein the evaluating comprises processing the spectroscopic data with at least one chemometric model, wherein the chemometric model translates the spectroscopic data into chemical composition information, wherein the chemometric model is selected in accordance with the item of identification information.
G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
G01N 21/3563 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solidsPreparation of samples therefor
G01N 21/359 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
G01N 21/84 - Systems specially adapted for particular applications
The invention relates to a method (100) for arranging an optical measurement device (300) comprising the following steps: (a) determining at least one feature (202) (102) in a reference spectrum (200) generated by a reference sample (400) (b) selecting at least one optical filter (320) (106) configured for having an acceptance wavelength range covering at least one wavelength assigned to at least a portion of the at least one feature (202); (c) providing at least one detector (312) (108) configured for generating at least one detector (312) signal related to incident radiation, and providing the selected at least one optical filter (320); wherein the at least one optical filter (320) is arranged in a field of view (350) of the at least one detector (312); (d) adjusting an cone angle (352) of the at least one optical filter (320) by considering a dependency of the at least one optical filter (320) arranged in the field of view (350) of the at least one detector (312) on an angle of radiation incident on the at least one optical filter (320) in a manner that an radiant flux of the radiation through the optical filter (320) is optimized. The invention further relates to an evaluation device, a computer program, a computer-readable storage medium and an optical measurement device (300). A spectrometer device arranged by the presented method (100) has a reduced signal-to-noise ratio, an increased accuracy and/or repeatability.
A method for measuring a performance of an illumination source emitting electromagnetic radiation, the method comprising: - receiving an image showing a projection of electromagnetic radiation onto an object associated with a quantity indicative of an intensity corresponding to at least one part of the image, - determining a performance indicator of the illumination source corresponding to a part of the image from the quantity indicative of the intensity by using a relation of a quantity indicative of an intensity and a performance indicator, - providing the performance indicator.
The present invention refers to a spectrometer device (100) for a classification of a sample (200) comprising at least one evaluation device (118), wherein the at least one evaluation device (118) is configured for performing a physical classification of the sample (200) and a chemical classification of the sample (200) by considering a first detector module (106) signal and a second detector module (112) signal. The present invention further refers a method for a classification of a sample, a computer program and a non-transient computer-readable storage medium. The spectrometer device for a classification of a sample, the method for a classification of a sample, the computer program and the non-transient computer-readable storage medium provide a compact spectrometer device that may be capable of a reliable, easy, versatile and fast classification of a sample.
G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
G01N 21/17 - Systems in which incident light is modified in accordance with the properties of the material investigated
H04N 25/683 - Noise processing, e.g. detecting, correcting, reducing or removing noise applied to defects by defect estimation performed on the scene signal, e.g. real time or on the fly detection
H04N 17/00 - Diagnosis, testing or measuring for television systems or their details
patents
